▎ 摘　　要

NOVELTY - Preparing graphene-based carbon-coated ZIF-67-derived cobalt oxide composite material involves using two-dimensional structure of graphene oxide as a base material to obtain ZIF-67-derived cobalt oxide through high-temperature carbonization. The obtained ZIF-67-derived cobalt oxide, graphene oxide, and carbon source are hydrothermally mixed and lyophilized to obtain a composite material to obtain final product. USE - Method for preparing graphene-based carbon-coated ZIF-67-derived cobalt oxide composite material used as a negative electrode material for lithium ion batteries (claimed). ADVANTAGE - The method enables to prepare graphene-based carbon-coated ZIF-67-derived cobalt oxide composite material shows excellent electrochemical performance as a cathode of a lithium ion battery, in simple manner.